The effectiveness of an experimental treatment for alcoholism depends on the genetic makeup of the people who receive it. The new finding may help doctors personalize treatments for people who abuse alcohol.

January 24, 2011

Scientists were able to eliminate tinnitus—a persistent ringing in the ears—in rats by stimulating a nerve in the neck while playing a variety of tones. The finding gives hope for a future tinnitus cure in humans.

By storing a form of a cancer drug inside a tiny object called a nanoparticle, researchers were able to shrink tumors using smaller doses. The technique, developed in mice, may hold promise for more efficient cancer therapy in humans.

Researchers have been able to see changes deep within the brains of living animals at the cellular level. The advance could provide an important tool for understanding diseases and disorders of the brain.